TAKE-HOME ASSIGNMENT # 3A
NAME
Mo Se Kim
GRADE
/ 100
1.
Please put your name in the space above.
Do this for every assignment.
2.
Copy your answers directly from your Class Notes to this file, by
PASTING
your respective table
directly
BELOW
each of
the reference tables provided here you will save some time.
3.
DO NOT ELIMINATE THE REFERENCE TABLES!
They are your reference points to be sure
you have answered all the questions AND will also be used to show corrections to your answers.
4.
When you save your work, please remember to rename the TH file by adding your last and first
name.
For example
: TH3-JonesP
5.
NOTE TH3 DUE DATE: SUNDAY MIDNIGHT
Dec. 3
3-2-6
Find the mean of 3,24,30,47,43,7,47,13,44,39.
x
x
n
=
∑
Σ
x
= 3+24+30+47+43+7+47+13+44+39=297
n
=10
Σ
x/n
=29.7
x
=29.7
Is the cereal sugar content MEAN representative of American consumption?
Why?
Yes, since the result includes all values of data and averaged, it will represent American consumption.
Paste your answer to the question above here:
(3 points- ½ point per item)
3-2-6
Find the median of 3,24,30,47,43,7,47,13,44,39.
Reorder the data:3,7,13,24,30,39,43,44,47,47
Median numbers:30,39
Average of median numbers: 69/2=34.6
Is the cereal sugar content MEDIAN representative of American consumption?
Why?
No, 34.6 is a middle number, however it ignores lowest numbers and highest numbers.
Paste your answer here: (2 points – ½ point per item)
3-2-6
Find the mode of 3,24,30,47,43,7,47,13,44,39.
47, the most frequent number.
Is the cereal sugar content MODE representative of American consumption?
Why?
No, mode(47) is the highest number of all data and it repeated only once. So it cannot be the
representative.
Paste your answer here: (2 points)
3-2-6
Find the MIDRANGE of 3,24,30,47,43,7,47,13,44,39.
Lowest number:3
Highest number:47
Midrange calculation: (3+47)/2 = 25
Is the sugar content MIDRANGE representative of American consumption?
Why?
No, If most of values are at 30s, and lowest and highest are still 3, 47, the midrange will be same as
now. So, midrange is not representative.
Paste your answer here: (2 points – ½ point per item)
3-2-10
A. Find the mean. Use a calculator. Show your work.
Σ
x
= (98.6+08,6+98.0+98.0+99.0+98.4+98.4+98.4)=787.4
n
=8
1